--- doc/Makefile.orig	Fri Feb  6 14:26:12 2004
+++ doc/Makefile	Fri Feb  6 14:28:53 2004
@@ -48,10 +48,12 @@
 	psnup -pa4 -2 mosmllib.ps mosmllib2up.ps
 
 install:
+.if !defined(NOPORTDOCS)
 	cp mosmlref.pdf $(DOCDIR)
 	cp manual.pdf $(DOCDIR)
 	cp mosmllib.pdf $(DOCDIR)
 	cp mosmllib2up.pdf $(DOCDIR)
+.endif
 	cd helpsigs; make install
 
 clean: